org.apache.hadoop.hive.ql.udf

Class UDFLn

java.lang.Object

org.apache.hadoop.hive.ql.exec.UDF

org.apache.hadoop.hive.ql.udf.UDFMath

org.apache.hadoop.hive.ql.udf.UDFLn

public class UDFLn
extends UDFMath

UDFLn.

Constructor Summary

Constructors

Constructor and Description
UDFLn()

Method Summary

Modifier and Type	Method and Description
protected DoubleWritable	doEvaluate(DoubleWritable a) Returns the natural logarithm of "a".

Methods inherited from class org.apache.hadoop.hive.ql.udf.UDFMath

evaluate, evaluate

Methods inherited from class org.apache.hadoop.hive.ql.exec.UDF

getRequiredFiles, getRequiredJars, getResolver, setResolver

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

UDFLn

public UDFLn()

Method Detail

doEvaluate

protected DoubleWritable doEvaluate(DoubleWritable a)

Returns the natural logarithm of "a".

Specified by:

doEvaluate in class UDFMath